This heavy duty size 3548, 1300kv BLDC motor
gives maximum thrust of 2100gms and weights only 176gms.
It has pretty good electrical efficiency because of its precision built and high quality parts.
It is best suited for large size Quadrotor

This motor gives maximum thrust of 1.2Kg and weights only 72gms.It is best suited for medium and large size Quadrotor (quadcopter), Hexacoptor, Octacoptor etc. Its rotor shaft is made up of hardened steel and supported by sealed dual bearings. It comes with propeller mount with 5mm diameter.

This heavy duty size 3548, 1100kv BLDC motor
gives maximum thrust of 2200gms and weights only 176gms.
It has pretty good electrical efficiency because of its precision built and high quality parts.
It is best suited for large size Quadrotor (quadcopter), Hexacoptor, Octacoptor etc